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HP HPE6-A90 Exam Syllabus Topics:

SectionObjectives
Automation and APIs- Automation Features
  • 1. REST APIs
  • 2. Bulk Operations
  • 3. Workflow Automation
  • 4. Integration with External Systems
HPE Aruba Networking Central Fundamentals- Central Architecture and Platform Components
  • 1. Configuration Groups and Templates
  • 2. Workspaces and Multi-tenancy
  • 3. Tags and Device Organization
  • 4. Device Onboarding and Inventory Management
Security and Access Control- Security Operations
  • 1. Secure Device Management
  • 2. Authentication and Authorization
  • 3. Compliance and Auditing
  • 4. Role-Based Access Control
Network Monitoring and Operations- Monitoring Dashboards
  • 1. Troubleshooting Tools
  • 2. Alerts and Event Management
  • 3. Reporting and Analytics
  • 4. Health and Performance Monitoring
Wired Network Management- Switch Management
  • 1. Firmware and Lifecycle Management
  • 2. Policy Enforcement
  • 3. AOS-CX Switch Configuration
  • 4. Configuration Deployment

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HPE Networking Central Exam HPE6-A90 Prüfungsfragen mit Lösungen (Q21-Q26):

21. Frage
One AP shows low throughput for a subset of clients. Where should you start your investigation?

Antwort: A

Begründung:
The AP dashboard Connectivity card provides real-time and historical performance metrics for the access point, including client throughput, RF conditions, and link quality. This is the most effective starting point to identify why only a subset of clients is experiencing reduced throughput on that AP.


22. Frage
In the solar planet view, what does the center entity represent?

Antwort: B

Begründung:
Technical explanation
The central entity represents the context from which the operator is exploring relationships, while surrounding planets or objects provide contextual navigation to clients, devices, sites and applications. Changing the selected site or device changes the perspective, not necessarily the physical network topology. This visualization should be understood as an information-architecture mechanism rather than a literal routing map.
A primary gateway, the internet edge or a severe alarm can be an object of interest, but none universally defines the central point. An internet edge, a gateway cluster, or an alert source may be visible in a given context but does not universally anchor the solar representation. The center represents the object currently being explored, allowing the surrounding relationships to shift.
Official HPE references | Planets in Global Monitoring Page * Device Health Card | Study-guide topic:
Network Management with HPE Aruba Networking Central


23. Frage
Which capability is enabled by a firewall's Deep Packet Inspection (DPI) behavior?

Antwort: C

Begründung:
Technical explanation
DPI identifies traffic according to application signatures and behavioral characteristics beyond traditional IP- address, port and protocol matches. That classification enables role-based rules and QoS decisions for applications such as collaboration, streaming or file sharing, even when services reuse common transport ports. DPI should not be equated with universal SSL interception; decryption requires separate, explicit capabilities and trust arrangements. Nor does it perform DHCP address allocation or Wi-Fi channel selection, which belong to different network subsystems.
DHCP relaying and RF channel selection are separate functions. Decrypting arbitrary SSL traffic is not implied by DPI; that would require additional TLS-interception capabilities and trust. DPI is useful because recognized application identities can be inputs to traffic policy.
Official HPE references | Application Visibility * AOS-10 Cloud Services | Study-guide topic: Introduction to AOS-10


24. Frage
Users report intermittent drops on the corporate SSID. Which HPE Aruba Networking Central tool helps isolate authentication failures?

Antwort: A

Begründung:
The Client Event log provides detailed authentication and association history for individual clients, including failures, reauthentication attempts, and disconnect reasons. This makes it the most effective tool for isolating intermittent SSID drops caused by authentication issues.


25. Frage
HPE Aruba Networking Central flags "High Retry Rate on 5 GHz." What's the best next action?

Antwort: A

Begründung:
Technical explanation
High 5 GHz retries can reflect co-channel interference, hidden nodes, low SNR, weak client transmit power or congestion even when an AP advertises adequate signal. Expand the performance card to compare channel utilization, noise, retries, PHY rates and client distribution over the relevant interval. Only then decide whether RF optimization, an AP placement change or a client-side fix is justified. Forcing clients to 2.4 GHz may worsen contention, and disabling band steering removes a steering mechanism without addressing underlying airtime loss.
Moving everyone to 2.4 GHz might simply exchange a noisy 5 GHz channel for a more congested band. Band steering changes client preference, not the cause of retries. First determine whether utilization, signal quality, or interference correlates with retries.
Official HPE references | AirMatch * Planets in Global Monitoring Page | Study-guide topic: Introduction to AOS-10


26. Frage
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